tikzlibrarypgfplots.ticklabels.command.code.tex

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% title: read tick labels from the content of a command through a key `(x|y|z)ticklabels from command`
% type: pgfplots library
% author: Antoine Lejay
% date: 2017-07-05
% usage: \usepgfplotslibrary{ticklabels.command}
% licence: LLPL
% version: 0.1
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% It is suitable to write 
% \newcommand{\myticks}{1,2,3}
% and then to set 
% xtick=\myticks as parameter to axis.
% However, this cannot be done for xticklabels as the content 
% if the command is considered as the first label.
% This small library provides a new key `(x|y|z)ticklabels from command` in which 
% the labels are expanded
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% The macro for generating a list is recreated with a macro to mark the stop.
% It is adapted from /liststructure/pgfplotsliststructure.code.tex
\long\def\pgfplotslistnewwithstop#1#2\END@PGF@LIST{%
    \pgfkeys@spdef\pgfplotslist@loc@TMPa{#2}%
	\def\pgfplotslist@loc@TMPb{\pgfplotslistnew@{#1}}%
	\expandafter\pgfplotslist@loc@TMPb\expandafter{\pgfplotslist@loc@TMPa}%
}

% The code is adapted from pgfplots.code.tex
% \expandafter is insterted so that #1 is expanded. 
\pgfkeys{
	/pgfplots/xticklabels from command/.code={%
	    \expandafter\pgfplotslistnewwithstop\expandafter\pgfplots@xticklabels#1\END@PGF@LIST%
		\let\pgfplots@xticklabel=\pgfplots@user@ticklabel@list@x
	},
	/pgfplots/yticklabels from command/.code={%
	    \expandafter\pgfplotslistnewwithstop\expandafter\pgfplots@yticklabels#1\END@PGF@LIST%
		\let\pgfplots@yticklabel=\pgfplots@user@ticklabel@list@y
	},
	/pgfplots/zticklabels from command/.code={%
	    \expandafter\pgfplotslistnewwithstop\expandafter\pgfplots@zticklabels#1\END@PGF@LIST%
		\let\pgfplots@zticklabel=\pgfplots@user@ticklabel@list@z
	},
    }
\endinput
% END